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Your AWS bill went up.
Do you know why?

Not another dashboard you'll ignore. A weekly email that tells you exactly what changed and how to fix it.

Fix my AWS bill in 60 seconds β€” free

No credit card Β· 60-second setup Β· Read-only access

thincost.com/dashboard
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ThinCost
demo@acme.comPro
⚠️ Watch

Your AWS spend is $3,240 this month, up 18% β€” EC2 is 62% of your bill and Reserved Instances could save $420/mo.

This month

$3,240

↑ 18% vs Sep

Savings found

$420/mo

Reserved Instances

Top service

EC2

62% of bill

Monthly spend

May
Jun
Jul
Aug
Sep
Oct

Service breakdown

EC2$2,015
RDS$485
S3$189
Lambda$145
Other$406

What ThinCost catches

The things that quietly drain your AWS budget every month

πŸ–₯️

Forgotten test environments running 24/7

Spotted in your first report. Dev instances left on over a weekend cost more than you think.

Typical savings: $180–$600/mo
πŸ“¦

EC2 instances that should be Reserved

If it's been running for 3+ months, you're paying on-demand rates for no reason. Reserved saves 30–70%.

Typical savings: $200–$1,200/mo
πŸ“€

S3 data transfer quietly doubling

Transfer costs compound fast and don't trigger billing alerts. ThinCost flags the month it starts climbing.

Typical savings: $90–$400/mo

From this β†’ to this.

Every Monday morning.

Before: AWS Cost Explorer

console.aws.amazon.com/cost-management/home

Cost and usage

DailyMonthlyHourly
ServiceUsage typeRegionCost
Amazon EC2BoxUsage:m5.xlargeus-east-1$1,204.82
Amazon EC2DataTransfer-Out-Bytesus-east-1$389.14
Amazon RDSInstanceUsage:db.t3.mediumus-east-1$267.90
Amazon EC2EBS:VolumeUsage.gp2us-west-2$142.33
AWS LambdaLambda-GB-Secondus-east-1$98.41

+ 247 more rows…

You know the number. You don't know why.

After: ThinCost report

ThinCostWeekly report Β· Oct 28, 8:03 AM
⚠️ Watch

Spend up 18% vs last month. EC2 data transfer doubled β€” a misconfigured NAT Gateway is the likely cause.

Key Findings

πŸ”₯

NAT Gateway data transfer doubled

Went from $180 β†’ $389 in 30 days. Likely a misconfigured service routing through NAT instead of VPC endpoint.

Save $200/mo
πŸ’‘

EC2 Reserved Instance opportunity

3Γ— m5.xlarge have been running 24/7 for 6 months. 1-yr reserved would save 42%.

Save $420/mo

πŸ’° $620/mo in savings identified this week

You know exactly what to fix and what it saves.

Built for the people who feel the bill

Solo founders

β€œYou're building, not auditing bills.”

ThinCost handles the AWS cost review so you can stay focused. You get a plain-English summary of what matters, once a week.

Small engineering teams

β€œYour devs shouldn't be in Cost Explorer.”

They should be shipping. ThinCost sends them exactly what changed, why, and what to fix β€” no dashboard spelunking required.

Startup CTOs

β€œKnow exactly what to tell your board.”

Walk into every quarterly review knowing your cloud spend, the trend, and the specific optimisations already in motion.

Three steps. Seriously.

01
123456789012

Enter your AWS account ID

No CLI, no IAM keys, no documentation to read. Just your 12-digit account ID.

02
Launch CloudFormation β†’

Deploy a read-only IAM role

One CloudFormation click. Creates a read-only role scoped to Cost Explorer only.

03
S

ThinCost Weekly Report

⚠️ $420 in savings found this week

Get weekly savings reports

Every Monday at 8am β€” what changed, why, and exactly what to fix this week.

A brief that fits in 2 minutes.

Not a wall of charts. Not a link to a dashboard. A verdict, the specific findings, and exactly what to do β€” written for you, about your account.

  • Verdict in plain English: Excellent / Good / Watch / Alert
  • Named findings with dollar impact β€” not generic tips
  • Specific next steps like 'Switch us-east-1 EC2 to 1-yr Savings Plan β†’ saves $420/mo'
  • Anomaly alerts the moment spend starts climbing
mail.google.com

⚠️ ThinCost: $420 savings found β€” Oct 2026

S

ThinCost <reports@thincost.com>

Mon, Oct 28, 8:03 AM

⚠️ Watch

Your AWS spend is $3,240 this month, up 18% β€” EC2 Reserved Instances could save $420/mo.

Key Findings

πŸ”₯

EC2 is 62% of your bill

4Γ— m5.xlarge running 24/7. Reserved Instances save $420/mo.

Save $420/mo
⚠️

Cost up 18% this month

October spend $3,240 vs September $2,740.

Next Steps

Switch us-east-1 EC2 to 1-yr no-upfront Savings Plan β†’ saves $420/mo
Review Lambda memory settings β€” currently 1024MB, likely over-provisioned

Sent by ThinCost Β· thincost.com

Here's exactly what we access

We know developers read fine print. Here's the complete picture β€” no hand-waving.

πŸ”’

Read-only IAM

Scoped to Cost Explorer only. Cannot read S3, EC2, RDS, or any of your data.

🚫

No credentials stored

We assume your role on demand. No API keys, no long-lived credentials on our servers.

πŸ“Š

Cost data only

We see billing amounts and service names. Not your logs, traffic, or application data.

⚑

Auditable setup

Every line of the CloudFormation template is public. Deploy it, read it, revoke it in 30s.

Full security details β†’

How data flows

1

Your AWS account

Cost Explorer API β€” read only

↓
2

Read-only IAM role

Created by you, in your account

↓
3

ThinCost analysis

We pull cost data once per week

↓
4

Your inbox

Plain-English report, every Monday

That's it. We never touch your infrastructure, instances, databases, or application data. We only ever see cost numbers.

View CloudFormation template source on GitHub

Simple pricing

Free

$0

  • Latest month dashboard
  • Monthly AI cost report
  • Service breakdown
  • Anomaly notifications (count only)
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$29/month
  • Everything in Free
  • 12-month cost history
  • Weekly AI reports (every Monday)
  • Full anomaly alerts with details
  • Priority support
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Teams typically recover $200–2,000/mo. Pays for itself the first week.

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